An article is a type of writing which typically presents information about one topic or about a particular subject. Articles are typically written in an organized and concise style, and they may be accompanied by images or other multimedia.
Blog posts, on the other hand, are a type of article which are typically shorter, and they are usually written by bloggers who want to share their thoughts on a particular topic or issue. Blog posts are typically less formal than articles, and they may be supplemented by images or other multimedia.
In general, articles are more likely to be researched and written with precision, while blog posts are more likely to be informal and open-ended. However, there is no hard and fast rule about what constitutes an article or a blog post, and different writers may use either format to great effect.
Ultimately, what matters most is whether the writing is well-crafted and informative, regardless of its formal or informal nature.